The contact owns a 2019 GMC Sierra 2500. The contact stated that while her husband was driving 30 MPH and depressing the accelerator pedal, there was an abnormal sound coming from the front of the vehicle, and the vehicle lost power unexpectedly. The contact stated that her husband was able to pull over to the right side of the road while waiting for tow truck assistance. The vehicle was towed to…
2019 GMC Sierra HD fuel system problems
moderate 4 complaints filed with NHTSA · avg repair $1,200 · see fuel system across all vehicles →
When does it fail?
Of the 4 fuel system complaints filed for the 2019 GMC Sierra HD, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What owners are reporting 3 most recent
The contact owns a 2019 GMC Sierra 2500. The contact stated while driving 10 MPH, the vehicle lost motive power and stalled and shut off independently. The vehicle was towed to a dealer and was diagnosed, and it was determined that the fuel pump control module needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was…
The contact owns a 2019 GMC Sierra 2500. The contact stated while stationary at a traffic light, he started to smell diesel fumes inside the cabin of the vehicle. The contact stated no warning light was illuminated. The contact was able to drive to his residence and while inspecting the vehicle, he noticed a fuel leak located near the engine. The contact called the local dealer and made them…
Common questions
How serious is the fuel system problem on the 2019 GMC Sierra HD?
It's a documented issue but not catastrophic. 4 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.
At what mileage does the fuel system typically fail?
Based on the 4 complaints filed, fuel system issues most often appear around 67,510 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to fuel system?
No active recalls currently cover fuel system issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.